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Method for perforating upward sector shaped medium-length holes by excavating drill jumbo
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A fan-shaped medium-deep hole, rock drilling rig technology, applied in drilling equipment and methods, earthwork drilling, drilling equipment and other directions, can solve problems such as large equipment loss and poor rock drilling effect.
Active Publication Date: 2016-09-21
CENT SOUTH UNIV
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Problems solved by technology
In many mines, it is a common way to use one machine for multiple purposes, but due to improper use, on the one hand, the effect on rock drilling is not good, and on the other hand, the loss of equipment is relatively large.
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Embodiment 1
[0026] see figure 1 and figure 2 , a method for punching upward fan-shaped middle-deep holes by using an excavation rock drilling rig, comprising the following steps:
[0027] 1) Adjust the position of the core 12 of the drilling rig. The core 12 of the excavation rock drilling rig is arranged on the left side of the center of the roadway, and the distance between the core 12 of the excavation rock drilling rig and the center of the roadway is 0.9m.
[0028] 2), keep the boom 13, the forearm 14 and the roadway level, after the boom 13 and the forearm 14 are stretched to a fixed position, keep the boom 13 and the forearm 14 still, and the forearm 14 is perpendicular to the machine head 15, Adjust the machine head 15 to a vertical state, turn the machine head 15, and drill holes No. 11, No. 10, No. 9, No. 8, No. 7 and No. 6 holes in sequence, and the angle of No. 6 hole is 90°.
[0029] 3), keep the boom 13 horizontal to the roadway, the boom 13 does not move, and the forear...
Embodiment 2
[0038] see figure 1 and image 3 , a method for punching upward fan-shaped middle-deep holes by using an excavation rock drilling rig, comprising the following steps:
[0039] 1) Adjust the position of the core 12 of the drilling rig. The core 12 of the excavation rock drilling rig is arranged on the right side of the center of the roadway, and the distance between the core 12 of the excavation rock drilling rig and the center of the roadway is 0.9m.
[0040] 2), keep the boom 13, the forearm 14 and the roadway level, after the boom 13 and the forearm 14 are stretched to a fixed position, keep the boom 13 and the forearm 14 still, and the forearm 14 is perpendicular to the machine head 15, Adjust the machine head 15 to a vertical state, turn the machine head 1, and drill holes No. 1-7 in sequence, wherein the angle of No. 7 hole is 90°.
[0041] 3), keep the boom 13 horizontal to the roadway, the boom 13 does not move, and the forearm 14 is perpendicular to the nose 15. Af...
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Abstract
The invention discloses a method for perforating upward sector shaped medium-length hole by an excavating drill jumbo. The method comprises following steps: (1) adjusting the movement position of the excavating drill jumbo and arranging the movement of the excavating drill jumbo at a position deviated from the tunnel center position; (2) keeping a large arm and a small arm horizontal with the tunnel, making the large arm and the small arm immobile, and the small arm be vertical to a headpiece, and rotating the headpiece, and perforating upward sector shaped medium-length holes at one side of the tunnel center direction till to the last vertical upward hole; (3) keeping the large arm horizontal with the tunnel and immobile, and making the small arm vertical to the headpiece, rotating the small arm with a designed angle and perforating blast holes at the other side successively. By means of the method, the blast holes perforated can be guaranteed on one row surface which satisfies the blasting conditions of upward sector-shaped holes and expands the function of excavating drill jumbos at the same time.
Description
technical field [0001] The invention relates to a method for drilling upward fan-shaped deep holes, in particular to a method for drilling upward fan-shaped deep holes by using an excavation rock drilling rig. Background technique [0002] There is a big difference in principle and structure between the driving drilling jumbo and the stope drilling jumbo. The drilling jumbo is mainly used for the excavation work of the level roadway, and the blastholes drilled are horizontal blastholes, which can realize the drilling work of the horizontal blastholes by adjusting the movements of the boom and forearm. The stope rock drilling rig mainly drills upward or downward fan-shaped or parallel holes, and its working principle is different from that of the road drilling rig. However, in actual production, in order to reduce the production cost of mines, one machine can be used for multiple purposes, and the road drilling jumbo can be applied to the stope, which can not only reduce the...
Claims
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Application Information
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